The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 474
together; c c are the slates ; d d, the rafters; and e the gutter beam. Thefall found requisite to carry off the water is found to be from a half to three … quarters of an inch in the yard, and this necessarily occasions the plane of theroof to rise towards the centre of the building, as shown in the sectionJig. 117., in which the rise is indicated by the dotted lines f f f f. All thecare that this requires in slating or tiling is, to bring the upper…
